From: Loc Ho Date: Thu, 24 Sep 2015 17:38:07 +0000 (-0700) Subject: EDAC, xgene: Fix possible sprintf() overflow issue X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9bc1c0c0ec14dcdb6df2c7a39dbaecb383a46681;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git EDAC, xgene: Fix possible sprintf() overflow issue Replace sprintf() with snprintf() to avoid possible string array overflow. Signed-off-by: Loc Ho Cc: Arnd Bergmann Cc: devicetree@vger.kernel.org Cc: ijc+devicetree@hellion.org.uk Cc: jcm@redhat.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-edac Cc: mark.rutland@arm.com Cc: Mauro Carvalho Chehab Cc: patches@apm.com Cc: robh+dt@kernel.org Link: http://lkml.kernel.org/r/1443116287-11752-1-git-send-email-lho@apm.com Signed-off-by: Borislav Petkov --- diff --git a/drivers/edac/xgene_edac.c b/drivers/edac/xgene_edac.c index aee03c21632a..dfa13bb60d71 100644 --- a/drivers/edac/xgene_edac.c +++ b/drivers/edac/xgene_edac.c @@ -879,7 +879,7 @@ xgene_edac_pmd_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev) if (!IS_ENABLED(CONFIG_EDAC_DEBUG) || !ctx->edac->dfs) return; - sprintf(name, "PMD%d", ctx->pmd); + snprintf(name, sizeof(name), "PMD%d", ctx->pmd); dbgfs_dir = edac_debugfs_create_dir_at(name, ctx->edac->dfs); if (!dbgfs_dir) return; @@ -923,7 +923,7 @@ static int xgene_edac_pmd_add(struct xgene_edac *edac, struct device_node *np, goto err_group; } - sprintf(edac_name, "l2c%d", pmd); + snprintf(edac_name, sizeof(edac_name), "l2c%d", pmd); edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx), edac_name, 1, "l2c", 1, 2, NULL, 0, edac_device_alloc_index());